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#!/usr/bin/env python
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# ignore all lints for this file, since it is run by python2 as well
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# type: ignore
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# pylint: disable=deprecated-module
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import sys
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# do not inject mesonbuild.scripts
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# python -P would work too, but is exclusive to >=3.11
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if sys.path[0].endswith('scripts'):
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del sys.path[0]
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import json, os, sysconfig
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import distutils.command.install
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def get_distutils_paths(scheme=None, prefix=None):
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import distutils.dist
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distribution = distutils.dist.Distribution()
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install_cmd = distribution.get_command_obj('install')
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if prefix is not None:
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install_cmd.prefix = prefix
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if scheme:
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install_cmd.select_scheme(scheme)
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install_cmd.finalize_options()
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return {
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'data': install_cmd.install_data,
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'include': os.path.dirname(install_cmd.install_headers),
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'platlib': install_cmd.install_platlib,
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'purelib': install_cmd.install_purelib,
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'scripts': install_cmd.install_scripts,
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}
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# On Debian derivatives, the Python interpreter shipped by the distribution uses
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# a custom install scheme, deb_system, for the system install, and changes the
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# default scheme to a custom one pointing to /usr/local and replacing
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# site-packages with dist-packages.
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# See https://github.com/mesonbuild/meson/issues/8739.
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# XXX: We should be using sysconfig, but Debian only patches distutils.
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if 'deb_system' in distutils.command.install.INSTALL_SCHEMES:
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paths = get_distutils_paths(scheme='deb_system')
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install_paths = get_distutils_paths(scheme='deb_system', prefix='')
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else:
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paths = sysconfig.get_paths()
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empty_vars = {'base': '', 'platbase': '', 'installed_base': ''}
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install_paths = sysconfig.get_paths(vars=empty_vars)
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def links_against_libpython():
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from distutils.core import Distribution, Extension
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cmd = Distribution().get_command_obj('build_ext')
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cmd.ensure_finalized()
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return bool(cmd.get_libraries(Extension('dummy', [])))
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variables = sysconfig.get_config_vars()
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variables.update({'base_prefix': getattr(sys, 'base_prefix', sys.prefix)})
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if sys.version_info < (3, 0):
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suffix = variables.get('SO')
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elif sys.version_info < (3, 8, 7):
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# https://bugs.python.org/issue?@action=redirect&bpo=39825
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from distutils.sysconfig import get_config_var
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suffix = get_config_var('EXT_SUFFIX')
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else:
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suffix = variables.get('EXT_SUFFIX')
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print(json.dumps({
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'variables': variables,
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'paths': paths,
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'sysconfig_paths': sysconfig.get_paths(),
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'install_paths': install_paths,
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'version': sysconfig.get_python_version(),
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'platform': sysconfig.get_platform(),
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'is_pypy': '__pypy__' in sys.builtin_module_names,
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'is_venv': sys.prefix != variables['base_prefix'],
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'link_libpython': links_against_libpython(),
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'suffix': suffix,
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}))
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